Tire-pressure valve and signal.



G. 0. JONES.

TIRE PRESSURE VALVE AND SIGNAL.

AHLICATION FILED MAY 3, 19H.

Patented July 2, 11918.

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hpecitoatlon ot hettera itatent.

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th all admit it may concern:

he it lniovvn that l, Gnnnnon U. dour-s, a citizen ot the United States ot America, and resident at Benton, in the county ot Dallas and State at lovva, have invented a new and nsetul lire-Pressure Valve and Signah lot which the tollovving is a specification.

The ohiect at this invention is to provide means tor indicating hy a signal or alarm audihle to the user when the pressure ot air or gas in a .llfillmillilfi tire or other container has reache a predetermined degree.

A turther ohject at this inventien is to provide means tor adjusting, to a visible scale, the parts ot a pressure valve so as to permit the introduction ot air to a predetermined degree at pressure into a pneumatic tire, or other container, and, when said degree ot pressure is attained, to permit the turther supply at air to discharge to the atmosphere and in so doing present an audihle w M to the user.

ll. turther provide means tor manually testing the opcentrally and eration ot a tire-pressure valve, and gage,

vvithout in g it, apart or dis-assembling it.

he turther ohject ot this invention is to provide a simple, convenient and inexpensive construction tor valves havin comhined therewith the characteristics at presenting an audihle sil or alarm and means tor testing as to operativeness Without dis-assemhhng the parts or any ot them.

invention consists in the construction, arrangement and comhination ot elements hereinatter set torth, pointed out in my claims andillustrated hy the accompanyg dra yvhich- 1 Figaro l a side elevation at thecoplete device. hig. Q is a side elevation at the device section on the central line at the easin 3 is a cross-section on the indicate" line 3-3 ot hi. l.

tn the construction at the i1 evice as shovvn the numeral 1h designates a main or hody at a valve easing, vvhich is at generally cylindiical shape and hood with a here it end portion ot the hody 10 is termed vvith an enternal 1 hread 12 adapted to be attached to a hose or pipe leadingtrom a source otcompressed air, as or other fluid or liquid (not shovvnl. t the opposite end a coupling i3 is pivoted on the hody ll) and is tanned vvith an internal thread ll adapted ohiect ot this invention an tram end to end thereot. Una

27 thig. spaced apart on the peripherg to he screwed on a tire-valve easing or stem (not shovvn), or other inlet ot a container into vvhich fluid or liquid is to he introduced under pressure. ilny desired means may he employed to connect the coupling 13 to the hody l0, and l here show a conventional means consisting ot a peripheral flange it on the hody cooperating an internal flange l d on the coupling. suitahle packing means may he eployed in the ouphng. ll. lateral ll, ot the valve casing, is termed on and entends laterally trom the central portion ot the hody l0, and said lateral is termed vvith a central hore lh enteng trom end to end thereot and communieating at its inner end vvith the horn ll. .dn annular chamher or cavity is termed in the outer end ortion ot the lateral ll and the end at sair lateral and hounded hy said chamher is smooth, preterahly ground, to torm a valve-seat 20. ll hranch or hrace memher El is located ohliquely hetvreen and termed on or fired at its ends to the outer end at the lateral lit and the hody lit, the point ot application or jointure ot the hraneh to the hody heing hetvveen the lateral and "the threaded end portion ot said hody. 'lhe hranoh Ell. is termed with a central hore 22 stopped at one end hv e hody l d and connicatingat the other end vvith thaaular chamher l9. it Whistle-notch as is termed in the inner sidaot the hranch hi and aitords um unication hetvveen the here 22 and the atmosphere hetvveen the lateral and hody. internal thread is termed the outer end portion at the lateral ll t ll thh

till

entends into the chamher re and a wrench hold all: is termed on the enterior ot said ot its inner and y ortion, which inner en portion entends vvithin the outer end at the hore 1th., said rihs ,se to engage the anti. at said here and steady the stem therein, at the same time permithng air to pass through said here hetneen said riha ll. alm

too

said spring engages 0r impinges at one end on the head 28 and, when backed as hereinafter described, holds the head and washer toward the seat 20. An adjusting screw 31, having a milled head 32, is screwed into the outer end of the barrel 25 and is formed with a central bore from end-to end adapted to admit and permit the loose passage therethrough of the stem 26. The inner end of the adjusting screw 31 engages the spring 30 and governs and controls the pressure exerted by said spring on the head 28 and, consequently, the force required to unseat the washer 29 from the seat 20. A ball or handle 33 is mounted, in this instance by screwing, on the outer end of the stem 26 and is spaced from the adjusting screw 31 to permit manual adjustment of said screw without contact with said ball. The ball may be employed for manipulation of the valve-stem 26, to unseat the valve and prevent sticking and jamming thereof in use, without dis-assembling the screw, barrel or other-parts. An annular groove 01' depression 34, of considerable length, is formed in the outer end portion of the periphery of the barrel 25 and annular graduations are formed in the bottom of said groove and spaced apart longitudinally of said barrel, which graduations are provided with indices such as 50, 60, 70, 80, 90, 100, and the like,

to indicate the pounds or units of pressure required to unseat the valve against the pressure spring. A collar 35 is mounted on the screw 31' and preferably is secured to the inner face of the head 32, and a pointer or index finger 36 is formed on said collar and extends into proximity to one or another of the graduations on the barrel 25. The pointer or index finger 36 is of irregular shape in'that it extends radially from the .collar' 35 to a zone slightly beyond that occupied by the periphery of the outer end of the barrel, is then bent at right angles and extends inwardly parallel with the adjusting screw and tooverlapping relation with the depression 34, and then is bent toward the barrel and enters the depression 34. The extremity of the pointer is wedge-shaped and forms a hook which normally prevents removal of the adjusting screw 31 from the barrel 25. In order to remove the screw 31 from the barrel 25, it is necessary first to bend or flex the pointer 36 away from said barrel manually. During the operation of adjusting the pressure of the spring 30, by manipulation of the adjusting screw 26, the

pointer or index finger 26 travels in relation to the graduations in the depression 31 and indicates thereon the force required to unseat the valve; hence the screw may be set to apply any desired and predetermined pressure to said valve.

In ordinary use in relation to a pneumatic tire, the body is permanently attached to an air hose or pipe and, then, is detachably connected to a tire-valve casing or stem. Air, under pressure, is turned through the hose and body and enters the tire through said valve or stem until the required and predetermined pressure is developed in said tire, at which time the pressure acts on and unseats the valve washer 29 from the seat 20, against the pressure of the spring 30. Then the air from the pressure supply es capes to the atmosphere through the seat 20, chamber 19, branch bore and whistlenotch 23, in sequence, and makes an audible signal or whistle, which serves as a notice or'alarm to the user who may be busied about other matters, Upon hearing the sig nal, the user would shut off the air supply and adjust the device to another tire or make other disposition ofit.

The use of this device avoids the necessity of frequent testing of the container, such as pneumatic tire, during the operation of replenishing the pressure of air therein: and it also avoids constant attention as the branch and whistle notch provides an effective safety or pop-off for the valve and prevents overcharging of the container.

The valve should be mani )ulated just prior to each use thereof, by draft on the ball 33 to unseat the valve and anticipate sticking or jamming therof in use.

I do not desire to be understood as limiting myself to the precise construction and arrangement of parts or to the specific use thereof on pneumatic tires, as the same may be modified or the use be varied and extended without departing from my invention.

I claim as my invention 1. A tire-pressure valve, gage and signal, comprising a tubular body, means for securing an air hose to said body, means for securing said body to a valve casing in a tire, a tubular lateral on said body and communicating therewith, a valve-seat in said lateral, the lateral being formed with a chamber surrounding said valve-seat, a branch connected obliquely to said lateral and body, said branch being formed with a bore opening at one end to said chamber, a whistle-notch being formed in said branch, a barrel on said lateral, an adjusting screw in said barrel, a valve stem mounted loosely in said screw, barrel and lateral, a head on said stem within said barrel, a washer on said stem between said head and valve-seat and adapted to engage the latter, and a presremote sure spring on said stem within said barrel, said spring impinging at its ends on said head and screw respectively.

2. In a device of the class described, a casing formed with a tubular body, a tubular lateral communicating therewith, a tubular branch connecting the body and lateral, said lateral being formed with a valve-seat and also being formed with an annular chamber surrounding said seat and communieating with the bore of the branch, said branch being formed with a whistle notch, all of said parts being integral.

3. A. tire-pressure valve, gage and signal, comprising a tubular body, means for securing an air-hose to said body, a coupling pivoted on said body and adapted to engage a tire-valve-casing, a tubular lateral on said body and communicating therewith, a valveseat being formed in said lateral, said lateral being formed with an annular chamber surrounding said valve-seat, a branch integrally connected obliquely to said b'ody and lateral, said branch being formed with a bore openingat one end to said annular chamber, said branch being formed with a whistlenotch between the lateral and body, a barrel screwed in said chamber and spaced from said valve-seat, the axis of the barrel being coincident with the center of the bore of the lateral, an adjusting screw screwed into said barrel in line with said valve-seat and formed with a bore having an axis coincident with the axis of the bore of the lateral, a valve-stem mounted loosely in the bore of the adjusting screw and extending through the barrel into the bore of the lateral and through the valve-seat, said stem also extending outside of the adjusting screw, a handle on the outer end of said stem, longitudinal ribs on the inner end of said stem, a head on said stem within said barrel, a washer on said stem between the head and valve-seat and adapted to seat on the latter, a pressure-spring on said stem within the barrel, said spring impinging at its ends on the screw and head respectively, said barrel being formed with a peripheral depression and also being formed with annular graduations in the bottom of said depression, a collar mounted on said adjusting screw, and a pointer formed on said collar, said po1nter extendlng to and term1nat mg in wedge-shape in the depression.

eunnnon oJonns. 

